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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JEFFREY YAMASAKI
NPI 1083485254
Behavior Analyst in Arvada, CO

Active since January 15, 2024
9527 IRON MOUNTAIN WAY, ARVADA, CO 80007(303) 717-3800 Get Directions Write a Review

NPPES record last updated: September 30, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

About Jeffrey Yamasaki NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JEFFREY YAMASAKI (NPI 1083485254) is an individual behavior analyst provider in Arvada, Colorado, licensed in Colorado (1-26-2849882) and active in the NPI registry since January 2024.

NPPES Registry Identity

NPI1083485254
Entity TypeIndividualMale
Primary Taxonomy103K00000X
Provider Legal NameJEFFREY YAMASAKI
Location Address9527 IRON MOUNTAIN WAYArvada, CO 80007-7728
Mailing Address9527 Iron Mountain WayArvada, CO 80007-7728 · (303) 717-3800
Phone(303) 717-3800
Sole ProprietorNo
Enumeration DateJanuary 15, 2024
Last NPPES UpdateSeptember 30, 2026
NPPES CertifiedSeptember 30, 2026
✔ NPI 1083485254 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers
Taxonomy Code103K00000X
License✔ Licensed in CO · 1-26-2849882
Definition
A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.
9527 IRON MOUNTAIN WAY, Arvada, CO 80007
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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHARONXING LLC
Behavior Analyst
9527 IRON MOUNTAIN WAY
ARVADA, CO 80007
Jefferson County (303) 717-3800

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jeffrey Yamasaki's NPI number?

The NPI number for Jeffrey Yamasaki is 1083485254. It was assigned to this individual provider in the NPPES registry on January 15, 2024.

Where is Jeffrey Yamasaki located?

Jeffrey Yamasaki practices at 9527 Iron Mountain Way, Arvada, CO 80007. The listed phone number is (303) 717-3800.

What is Jeffrey Yamasaki's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

When was this NPI record last updated?

The NPPES record for Jeffrey Yamasaki was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.